CVE-2026-21276

High

Description

InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Access of Uninitialized Pointer vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

SeverityHigh

CVSS7.8

Exploit probability—

Product

Adobe Indesign

PublishedJan 13, 2026

First seenJan 13, 2026

Weakness typeCWE-824CWE-824

How to fix

Update

adobe indesign20.5.1, 21.1 or later

Vendor advisories

helpx.adobe.com/security/products/indesign/apsb26-02.html

Affected products

Product	Affected versions	Fixed in
adobe indesign	v < 20.5.1, 21.0 ≤ v < 21.1	20.5.1, 21.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.